/Engine/Source/Editor/GameProjectGeneration/Public/GameProjectUtils.h
Returns a comma delimited string comprised of all the elements in InList. If bPlaceQuotesAroundEveryElement, every element is within quotes.
static [FString](API\Runtime\Core\Containers\FString) MakeCommaDelimitedList ( const [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & InList, bool bPlaceQuotesAroundEveryElement )